A GitHub project called GPT4free allows you to obtain the GPT4 and GPT3.5 models for free, deliver these queries through websites such as You.com, Quora, and CoCalc, and return the answers to you. It received 14k stars this week. OpenAI requested it to be taken down within 5 days, otherwise there will be a lawsuit. Well, the author might want to challenge it.
https://github.com/xtekky/gpt4free
Still on vacation, have a great vacation!